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5x五次方-15x三次方y-20xy因式分解后答案多少
人气:119 ℃ 时间:2020-10-01 20:19:31
解答
5x^5-15x^3y-20xy^2; =5x(x^4-3x^2y-4y^2) =5x(x^2-4y^2)(x^2+y^2) =5x(x-2y)(x+2y)(x^2+y^2) 祝你学业进步!
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